Machine for boring, drilling, and the like.



A. W. FOOTE.

MACHINE FOR BORING, DRILLING, AND THE LIKE.

APPLICATION FILED FEB.5, 1910.

1,005,634, Patented Oct. 10, 1911.

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COLUMBIA PLANOGRAPH CO-VWASHINGTON. D. c.

A. W. POOTE.

MACHINE FOR BORING, DRILLING, AND THE LIKE.

APPLICATION FILED PEIBJE, 1910.

Patented Oct. 10, 1911.

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A. W. FOOTE. MACHINE FOB. BORING, DRILLING, AND THE LIKE. APPLICATIONFILED r1113. 5, '1010.

1,005,634. Patented Oct. 10,1911.

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ANDREW W. FOOTE, F GATES MILLS, OHIO.

MACHINE FOR BORING, DRILLING, AND THE LIKE.

To all whom it may concern:

Be it known that I, ANDREW W. Foo'rn, a

' citizen of the United States, and a resident of Gates Mills, county ofCuyahoga, and State of Ohio, have invented a new and use ful Improvementin Machines for Boring, Drilling, and the Like, of which the followingis a specification, the principle of the invention being hereinexplained and the best mode in which I have contemplated applying thatprinciple, so as to distinguish it from other inventions.

My invention relates to boring machines, drilling machines, and tomachines generally for performing operations analogous to thosementioned.

The invention provides a machine of this character having variousimprovements in the construction of parts, and forming a completemachine adapted to perform its work more efficiently and moreeconomically than machines of this class heretofore in use.

The several improvements in the machine will appear from a detaileddescription.

To the accomplishment of these and related ends said invention, then,consists of the means hereinafter fully described and particularlypointed out in the claims.

The annexed drawings and the following description set forth in detailcertain mechanism embodying the invention, such disclosed meansconstituting, however, but one of various mechanical forms in which theprinciple of the invention may be used.

In said annexed drawings :Figure 1 is a front elevation of a machineembodying my invention; Fig. 2 is an end elevation of the machine viewedfrom the right in Fig. 1; Fig. 3 is a partial end elevation of themachine viewed from the left in Fig. 1; Fig. 4 is a cross-section on theline 4.4 in Fig. 1.

The machine is supported from a suitable bed A by the usual uprights a,and near the top of the uprights is secured a cross rail a whichsupports the supporting head c Rigidly secured to the supporting head aare a plurality of sleeves a which are here shown as four in number, themachine illustrating the invention being adapted for simultaneouslyboring four cylinders. These sleeves a depend from the supporting head aand are of substantially the same diameter as the cylinder which isbeing bored, while spindles c depend through, and have Specification ofLetters Patent.

Application filed February 5, 1910.

Serial No. 542,193.

a bearing in, the sleeves a and extend slightly below the lower ends ofthe sleeves, and to such lower ends of the spindles a are attached thedesired tools. A horizontal drive shaft B is journaled at the top of theuprights aand may be driven by any suitable power, and two of thespindles a are provided at their upper ends with worm gears a which aredriven by worms 6 on the drive-shaft B, these two spindles in turndriving the remaining two spindles. The gearing by which two of thespindles a drive the other spindles is of spur gear con structionadapted to provide an extremely steady drive.

The work being bored is bolted or otherwise secured to a table Gdisposed below the spindles a The table C is horizontally movable sothat while one piece of work is being bored another piece may beattached to the outer end of the table, and when the piece being boredis completed, the table may be moved to bring the newly attached pieceunder the spindles. The table is also vertically reciprocable, and it isby this means that the work is advanced upon the tools, the tools notbeing capable of vertical movement. Any suitable means may be used forlowering and raising the table C, but this means will preferably consistof racks c and pinion 0 the shaft 0 bearing the pinion which is adaptedto raise the table being actuated through intermediate gearing by theworm gear 0. At the corresponding end of the main drive shaft B suitablegearing connects with said drive shaft a bevel pinion b, and pivotallymounted upon an axis alined with that of the pinion b is a verticallydisposed shaft 0 which bears at its upper end a bevel gear 0 meshingwith the bevel pinion b,

and at its lower end a worm 0 adapted to mesh with the worm gear 0. Inorder to swing this vertical shaft 0' on its pivotal axis so that theworm gear 0 and worm 0 may be connected or disconnected as desired, abell-crank lever c is provided which is connected at the end of one ofits arms with the lower end of the vertical shaft 0. The bell-cranklever 0 influenced by the weight of its free arm, tends always to havesuch free arm fall and to thus swing the vertical shaft 0 on its axisand disconnect the worm c from. the worm gear 0. The tendency of theouter arm of the lever c to fall, however, is normally restrained by aPatented Got. 10, ran.

transverse lever c which may be set as a latch to hold such outer arm inits raised position and so to hold the gear 0 and worm c in mesh. Anadjustable stop 0 is provided on the outer face of the table which isadapted, during the upward movement of the table, to strike the leverand thereby release the outer arm of the bell-crank lever 0 which, uponfalling, disconnects the gear "and worm and stops the upward movement ofthe table.

The mechanism for lowering the table operates through the same racks andpinions, the shaft 0 bearing the pinions being now actuated by a gear Dloosely mounted thereon which is operated in turn through intermediategearing by the pulley (Z. A clutch (Z serves to connect or disconnectthe gear with such shaft, and the clutch d is operable by a horizontallyreciprocable rod (Z which. is connected with the clutch (Z by a lever (ZA spring cl continually tends to move the horizontal rod (Z in suchmanner as to throu the clutch into engagement, but the rod is normallyrestrained from such movement by engagement therewith of a catch (Z aspring CZ holding the catch in engagement with the rod. A rod 0 dependsfrom the outer arm of the bell-crank lever c, and when such bell-cranklever drops, this rod 0 strikes the catch (Z5 and releases it and allowsthe horizontal rod (Z to throw the clutch into engagement, and hence setin motion the mechanism for lowering the table. A projection (Z on theouter face of the table, while the table descends, strikes a bell-cranklever (Z and by means thereof returns the horizontal rod (Z to its firstposition against the action of the spring (i and thus disengages theclutch and again renders inoperative the mechanism for lowering thetable. A device D is provided by which the table C may be manuallylowered if desired. Suitable weights will preferably be connected withthe table in order to counterbalance the table during its verticalreciprocation.

The general mode of operation of my machine has been indicated inconnection with the description of the details of the machine, butcertain of the advantages embodied in the machine may be particularlynoted. It is desired in a machine of this class that the tool carryingspindles shall not be required to perform their work at a point fardistant from any bearing of the spindles, for the result in such case isweakness of the spindle and inaccuracy of its work. I obviate thisdiiliculty by providing below the supporting head the bearing sleevesfor the spindles which, during the operation of the machine, may enterthe work being bored along with the tool and thus gives to the spindle ahearing and consequent lateral support very near to the end of thespindle which is carrying the tool. The means by which the mechanism forraising the table is driven so that it may be easily and automaticallydisconnected when the table reaches a predetermined height, possess manyobvious advantages which need not be mentioned in de tail, while thereturn movement likewise is of simple and advantageous construction andis arranged to be automatically operated by the same device thatdisconnects the mechanism which has raised the table.

Uther modes of applying the principle of my invention may be employedinstead of the one explained, change being made as regards the mechanismherein disclosed, provided the means stated by any of the followingclaims or the equivalent of such stated means be employed.

1 therefore particularly point out and distinctly claim as myinvention 1. In a machine of the class described, the combination of asupport, a rotatable spindle, a table reciprocable toward and from saidspindle, means for moving the table toward said spindle, said meansincluding a gear, a pivotally mounted shaft adapted to be driven at itspivoted end and adapted at its free end to drive said gear, a bell-cranklever having one arm connected with the free end of said shaft, saidlever normally tending to disconnect said shaft from said gear, a leveradapted to restrain such tendency, and means for moving the table fromsaid spindle.

2. In a machine of the class described, the combination of a support, arotatable spindle, a table reciprocable toward and from said spindle,means for moving the table toward said spindle, said means in cluding agear, a pivotally mounted shaft adapted to be driven at its pivoted endand adapted at its free end to drive said gear, a bell-crank leverhaving one arm connected with the free end of said shaft, said levernormally tending to disconnect said shaft from said gear, a leveradapted to restrain such tendency, an adjustable stop carried, by saidtable and adapted to move said lever to release said bell-crank lever,and means for moving the table from said spindle.

3. In a machine of the class described, the combination of a support, ahorizontal drive shaft, a vertically disposed rotatable spindelconnected therewith, a vertically reciproshaft, a vertically disposedrotatable spindle means for raising the table, said means including aworm gear, a vertically disposed shaft provided at its upper end with abevel gear in mesh with a bevel gear driven by the drive shaft, saidshaft being pivoted on an axis alined with the axis of the last-namedgear and having a worm at its free end adapted to mesh wit-h said wormgear, a bell-crank lever having one arm connected with the free end ofsaid shaft and the other arm tending to fall to disconnect said worm andworm gear, a lever adapted to retain such other arm in raised position,an adjustable stop carried by said table and adapted to move said leverfrom such retaining position, and means for lowering the table.

4. In a machine of the class described, the combination of a support, arotatable spindle, a table reciprocable toward and from said spindle,means for moving the table toward said spindle, said means including agear, means for driving said gear, means for disconnecting the drivingmeans from said gear, and normally inoperative means for moving thetable from said spindle, said disconnecting means being adapted torender the last-named means operative upon disconnecting said drivingmeans from said gear.

5. In a machine of the class described, the combination of a support, arotatable spindle, a table reciprocable toward and from said spindle,means for moving the table toward said spindle, said means including agear, means for driving said gear, means for disconnecting the drivingmeans from said gear, normally inoperative means for moving the tablefrom said spindle, and clutch mechanism for rendering operative saidlastnamed means, said disconnecting means being adapted to actuate theclutch upon disconnecting said driving means from said gear.

6. In a machine of the class described, the combination of a support, arotatable spindle, a table reciprocable toward and from said spindle,means for moving the table toward said spindle, said means including agear, means for driving said gear, means for disconnecting the drivingmeans from said gear, normally inoperative means for moving the tablefrom said spindle, clutch mechanism for rendering operative saidlastnamed means, a reciprocable rod adapted to actuate said clutch, aspring tending to move said rod to actuate said clutch, and a catchrestraining such movement of the rod, said disconnecting means beingadapted to trip said catch upon disconnecting said driving means fromsaid gear.

7. In a machine of the class described, the combination of a support, arotatable spindle, a table reciprocable toward and from said spindle,means for moving the table toward said spindle, said means including agear, means for driving said gear, means for disconnecting the drivingmeans from said gear, normally inoperative means for moving the tablefrom said spindle, clutch mechanism for rendering operative saidlast-named means, a reciprocable rod adapted to actuate said clutch, aspring tending to move said rod to actuate said clutch, a catchrestraining such movement of the rod, said disconnecting means beingadapted to trip said catch upon disconnecting said driving means fromsaid gear, means operable by said table for returning said rod againstthe action of said spring, and a second spring tending to move saidcatch to engage said rod.

8. In a machine of the class described, the combination of a support, arotatable spindle, a table reciprocable toward and from said spindle,means for moving the table toward said spindle, said means including agear, a pivotally mounted shaft adapted to be driven at its pivoted endand adapted at its free end to drive said gear, means for swinging saidshaft on its pivotal axis, and normally inoperative means for moving thetable from said spindle, said means for swinging the shaft being adaptedto render the lastnamed means operative upon swinging said shaft.

9. In a machine of the class described, the combination of a support, arotatable spindle, a table reciprocable toward and from said spindle,means for moving the table toward said spindle, said means including agear, a pivotally mounted shaft adapted to be driven at its pivoted endand adapted at its free end to drive said gear, a bell-crank leverhaving one arm connected with the free end of said shaft, and normallyinoperative means for moving the table from said spindle, the free armof the bell-crank lever being adapted to render said last-named meansoperative when so moved as to disconnect said shaft from said gear.

10. In a machine of the class described, the combination of a support, arotatable spindle, a table reciprocable toward and from said spindle,means for moving the table toward said spindle, said means including agear, a pivotally mounted shaft adapted to be driven at its pivoted endand adapted at its free end to drive said gear, a bell-crank leverhaving one arm connected with the free end of said shaft, said levernormally tending to disconnect said shaft from said gear, a leveradapted to restrain such tendency, an adjustable stop carried by saidtable and adapted to move said lever to release said bell-crank lever,and normally inoperative means for moving the table from said spindle,the free arm of the bell-crank lever being adapted, upon its release, torender said last-named means operative.

11. In a machine of the class described, the combination of a support, arotatable spindle, a table reciprocable toward and from said spindle,means for moving the table toward said spindle, said means including agear, a pivotally mounted shaft adapted to be driven at its pivoted endand adapted at its free end to drive said gear, a bellcrank lever havingone arm connected with the free end of said shaft, said lever normallytending to disconnect said shaft from said gear, a lever adapted torestrain such tendency, an adjustable stop carried by the table andadapted to move said lever to release said bell-crank lever, normallyinoperative means for moving the table from said spindle, clutchmechanism for render ing operative said last-named means, a reciprocablerod adapted to actuate said clutch, a spring tending to move said rod toactuate said clutch, and a catch restraining such movement of the rod,said bellcrank lever being adapted, upon its release, to trip saidcatch.

12. In a machine of the class described, the combination of a support, arotatable spindle, a table reciprocable toward and from said spindle,means for moving the table toward said spindle, said means including agear, a pivotally mounted shaft adapted to be driven at its pivoted endand adapted at its free end to drive said gear, a bell-crank leverhaving one arm connected with the free end of said shaft, said levernormally tending to disconnect said shaft from said gear, a leveradapted to restrain such tendency, an adjustable stop carried by thetable and adapted to move said lever to release said bell-crank lever,normally inoperative means for moving the table from said spindle,clutch mechanism for rendering operative said last-named means, areciprocable rod adapted to actuate said clutch, a spring tending tomove said rod to actuate said clutch, a catch restraining such movementof the rod, said bell-crank lever being adapted, upon its release, totrip said catch, means operable by said table for returning said rodagainst the action of said spring, and a second spring tending to movesaid catch to engage said rod.

13. In a machine of the class described, the combination of a support, ahorizontal drive shaft, a vertically disposed rotatable spindleconnected therewith, a vertically reciprocable table disposed below saidspindle, means for raising the table, said means including a worm gear,a vertically disposed shaft provided at its upper end with a bevel gearin mesh with a bevel gear driven by the drive shaft, said shaft beingpivoted on an axis alined with the aXis of the last-named gear andhaving a worm at its free end adapted to mesh with said worm gear, abell-crank lever having one arm connected with the free end of saidshaft and the other arm normally tending to fall to disconnect said wormand worm gear, a le ver adapted to retain such other arm in raisedposition, an adjustable stop carried by said table and adapted to movesaid lever from such retaining position, normally inoperative means forlowering the table, clutch mechanism for rendering operative saidlast-named means, a reciprocable rod adapted to actuate said clutch, aspring tending to move said rod to actuate said clutch, a catchrestraining such movement of the rod, said bell-crank lever beingadapted, upon its release, to trip said catch, means operable by saidtable for returning said rod against the action of said spring, and asecond spring tending to move said catch to engage said rod. 19iigned byme this 3rd day of February,

ANDRElV WV. FOOTE.

Attested by- A. M. KING, JNo. F. OBERLIN- Copies of this patent may beobtained for five cents each, by addressing the Commissioner of Patents,Washington, D. G.

